213300323221 has 4 divisors (see below), whose sum is σ = 213301490572. Its totient is φ = 213299155872.

The previous prime is 213300323213. The next prime is 213300323239. The reversal of 213300323221 is 122323003312.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 87548524996 + 125751798225 = 295886^2 + 354615^2 .

It is a cyclic number.

It is not a de Polignac number, because 213300323221 - 2³ = 213300323213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213300323192 and 213300323201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213300323251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243510 + ... + 697063.

It is an arithmetic number, because the mean of its divisors is an integer number (53325372643).

Almost surely, 2^213300323221 is an apocalyptic number.

It is an amenable number.

213300323221 is a deficient number, since it is larger than the sum of its proper divisors (1167351).

213300323221 is an equidigital number, since it uses as much as digits as its factorization.

213300323221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1167350.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 213300323221 its reverse (122323003312), we get a palindrome (335623326533).

The spelling of 213300323221 in words is "two hundred thirteen billion, three hundred million, three hundred twenty-three thousand, two hundred twenty-one".